Am–Pu phases

9 phases (tier A 5, liquid 1, needs_review 3); 8 stable in a calculated diagram. Structure types are assigned only when the stored evidence supports an assignment under the stated tier rules (tier A: standard phase name; tier B: unique Materials Project + OQMD on-hull match, DFT-supported; tier C: one structure stated by the assessment's crystallographic table, assessor-stated); other phases list candidates and are marked needs_review. Stability is from phase diagrams calculated with pycalphad from the SGTE binary collection (evidence class: model).

Data: interactive registry · full JSON · Am–Pu system page · Markdown · field reference

Phases of the Am–Pu system (9)
Phase	Structure	Basis	Stability (calculated)	TDB models
TETRAGONAL_A6 phase:am-pu:a6-tetragonal	In · A6 · tI2 · I4/mmm (139)	tier A: standard phase name	stable in 4 of 4 calculated diagram(s): 610.1–910.38 K, x(Pu) 0.99996–1	4
BCC_A2 phase:am-pu:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 4 of 4 calculated diagram(s): 754.9–1454.39 K, x(Pu) 0–1	4
DHCP phase:am-pu:dhcp-a3	alpha-La · A3' · hP4 · P6_3/mmc (194)	tier A: standard phase name	stable in 4 of 4 calculated diagram(s): 299.62–1358.22 K, x(Pu) 0–0.08241	4
FCC_A1 phase:am-pu:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 4 of 4 calculated diagram(s): 299.57–1358.22 K, x(Pu) 0–1	4
HCP_A3 phase:am-pu:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	not stable in 2 calculated diagram(s)	2
LIQUID phase:am-pu:liquid	liquid	liquid	stable in 4 of 4 calculated diagram(s): 898–4000 K, x(Pu) 0–1	4
ALPHA_PU phase:am-pu:pu-alpha		needs_review	stable in 4 of 4 calculated diagram(s): 299.57–397.62 K, x(Pu) 0.9986–1	4
BETA_PU phase:am-pu:pu-beta		needs_review	stable in 4 of 4 calculated diagram(s): 397.61–488.11 K, x(Pu) 0.99845–1	4
GAMMA_PU phase:am-pu:pu-gamma		needs_review	stable in 4 of 4 calculated diagram(s): 487.9–732.9 K, x(Pu) 0.9987–1	4

TETRAGONAL_A6 (Am–Pu)

Id: phase:am-pu:a6-tetragonal; status assigned
Structure: In · A6 · tI2 · I4/mmm (139); type st:a6-in-ti2; tier A: standard phase name; confidence high
Stability: stable in 4 of 4 calculated diagram(s): 610.1–910.38 K, x(Pu) 0.99996–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:am-pu:a6-tetragonal
tdb: tdb:AmPu-10Kur.tdb:TETRAGONAL_A6, tdb:AmPu-11Got.tdb:TETRAGONAL_A6, tdb:AmPu-11Tur.tdb:TETRAGONAL_A6, tdb:AmPu-93Oga.tdb:TETRAGONAL_A6

TDB models of TETRAGONAL_A6 (4): PHASE and CONSTITUENT statements as written

AmPu-10Kur.tdb: TETRAGONAL_A6, type code %, sha256 623e65dd75a93398…

48: PHASE TETRAGONAL_A6 % 1 1 !
49: CONST TETRAGONAL_A6 : AM PU% : !

AmPu-11Got.tdb: TETRAGONAL_A6, type code %, sha256 7d92a09b3d9c4097…

43: PHASE TETRAGONAL_A6 % 1 1 !
44: CONST TETRAGONAL_A6 : PU : !

AmPu-11Tur.tdb: TETRAGONAL_A6, type code %, sha256 4acb7bac9c3e8fce…

51: PHASE TETRAGONAL_A6 % 1 1 !
52: CONST TETRAGONAL_A6 : AM PU% : !

AmPu-93Oga.tdb: TETRAGONAL_A6, type code %, sha256 8271a877d7d9acea…

40: PHASE TETRAGONAL_A6 % 1 1 !
41: CONST TETRAGONAL_A6 : PU : !

Example references (3 of 3; assessments first):

doi:10.1016/0925-8388(93)90636-2 Toru Ogawa, Alloying behaviour among U, Np, Pu and Am predicted with the Brewer valence bond model, Journal of Alloys and Compounds 194, 1-7 (1993).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.05.014 P. Gotcu-Freis, J.-Y. Colle, C. Guéneau, N. Dupin, B. Sundman, R.J.M. Konings, A thermodynamic study of the Pu–Am–O system, Journal of Nuclear Materials 414, 408-421 (2011).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.06.034 P.E.A. Turchi, A.I. Landa, P.A. Söderlind, Thermodynamic assessment of the Am–Pu system with input from ab initio, Journal of Nuclear Materials 418, 165-173 (2011).
assessment that models this phase

BCC_A2 (Am–Pu)

Id: phase:am-pu:bcc-a2; status assigned
Structure: W · A2 · cI2 · Im-3m (229); type st:a2-w-ci2; tier A: standard phase name; confidence high
Stability: stable in 4 of 4 calculated diagram(s): 754.9–1454.39 K, x(Pu) 0–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:am-pu:bcc-a2
tdb: tdb:AmPu-10Kur.tdb:BCC_A2, tdb:AmPu-11Got.tdb:BCC_A2, tdb:AmPu-11Tur.tdb:BCC_A2, tdb:AmPu-93Oga.tdb:BCC_A2

TDB models of BCC_A2 (4): PHASE and CONSTITUENT statements as written

AmPu-10Kur.tdb: BCC_A2, type code %B, sha256 623e65dd75a93398…

33: PHASE BCC_A2 %B 2 1 3 !
34: CONST BCC_A2 : AM% PU% : VA : !

AmPu-11Got.tdb: BCC_A2, type code %B, sha256 7d92a09b3d9c4097…

33: PHASE BCC_A2 %B 2 1 3 !
34: CONST BCC_A2 : AM% PU% : VA : !

AmPu-11Tur.tdb: BCC_A2, type code %B, sha256 4acb7bac9c3e8fce…

36: PHASE BCC_A2 %B 2 1 3 !
37: CONST BCC_A2 : AM% PU% : VA : !

AmPu-93Oga.tdb: BCC_A2, type code %B, sha256 8271a877d7d9acea…

30: PHASE BCC_A2 %B 2 1 3 !
31: CONST BCC_A2 : AM% PU% : VA : !

Example references (3 of 3; assessments first):

doi:10.1016/0925-8388(93)90636-2 Toru Ogawa, Alloying behaviour among U, Np, Pu and Am predicted with the Brewer valence bond model, Journal of Alloys and Compounds 194, 1-7 (1993).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.05.014 P. Gotcu-Freis, J.-Y. Colle, C. Guéneau, N. Dupin, B. Sundman, R.J.M. Konings, A thermodynamic study of the Pu–Am–O system, Journal of Nuclear Materials 414, 408-421 (2011).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.06.034 P.E.A. Turchi, A.I. Landa, P.A. Söderlind, Thermodynamic assessment of the Am–Pu system with input from ab initio, Journal of Nuclear Materials 418, 165-173 (2011).
assessment that models this phase

DHCP (Am–Pu)

Id: phase:am-pu:dhcp-a3; status assigned
Structure: alpha-La · A3' · hP4 · P6_3/mmc (194); type st:a3-alpha-la-hp4; tier A: standard phase name; confidence high
Stability: stable in 4 of 4 calculated diagram(s): 299.62–1358.22 K, x(Pu) 0–0.08241
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:am-pu:dhcp-a3
tdb: tdb:AmPu-10Kur.tdb:DHCP, tdb:AmPu-11Got.tdb:DHCP, tdb:AmPu-11Tur.tdb:DHCP, tdb:AmPu-93Oga.tdb:DHCP

TDB models of DHCP (4): PHASE and CONSTITUENT statements as written

AmPu-10Kur.tdb: DHCP, type code %, sha256 623e65dd75a93398…

43: PHASE DHCP % 1 1 !
44: CONST DHCP : AM% PU : !

AmPu-11Got.tdb: DHCP, type code %, sha256 7d92a09b3d9c4097…

38: PHASE DHCP % 1 1 !
39: CONST DHCP : AM% PU : !

AmPu-11Tur.tdb: DHCP, type code %, sha256 4acb7bac9c3e8fce…

46: PHASE DHCP % 1 1 !
47: CONST DHCP : AM% PU : !

AmPu-93Oga.tdb: DHCP, type code %, sha256 8271a877d7d9acea…

35: PHASE DHCP % 1 1 !
36: CONST DHCP : AM : !

Example references (3 of 3; assessments first):

doi:10.1016/0925-8388(93)90636-2 Toru Ogawa, Alloying behaviour among U, Np, Pu and Am predicted with the Brewer valence bond model, Journal of Alloys and Compounds 194, 1-7 (1993).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.05.014 P. Gotcu-Freis, J.-Y. Colle, C. Guéneau, N. Dupin, B. Sundman, R.J.M. Konings, A thermodynamic study of the Pu–Am–O system, Journal of Nuclear Materials 414, 408-421 (2011).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.06.034 P.E.A. Turchi, A.I. Landa, P.A. Söderlind, Thermodynamic assessment of the Am–Pu system with input from ab initio, Journal of Nuclear Materials 418, 165-173 (2011).
assessment that models this phase

FCC_A1 (Am–Pu)

Id: phase:am-pu:fcc-a1; status assigned
Structure: Cu · A1 · cF4 · Fm-3m (225); type st:a1-cu-cf4; tier A: standard phase name; confidence high
Stability: stable in 4 of 4 calculated diagram(s): 299.57–1358.22 K, x(Pu) 0–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:am-pu:fcc-a1
tdb: tdb:AmPu-10Kur.tdb:FCC_A1, tdb:AmPu-11Got.tdb:FCC_A1, tdb:AmPu-11Tur.tdb:FCC_A1, tdb:AmPu-93Oga.tdb:FCC_A1

TDB models of FCC_A1 (4): PHASE and CONSTITUENT statements as written

AmPu-10Kur.tdb: FCC_A1, type code %A, sha256 623e65dd75a93398…

28: PHASE FCC_A1 %A 2 1 1 !
29: CONST FCC_A1 : AM% PU% : VA : !

AmPu-11Got.tdb: FCC_A1, type code %A, sha256 7d92a09b3d9c4097…

28: PHASE FCC_A1 %A 2 1 1 !
29: CONST FCC_A1 : AM% PU% : VA : !

AmPu-11Tur.tdb: FCC_A1, type code %A, sha256 4acb7bac9c3e8fce…

31: PHASE FCC_A1 %A 2 1 1 !
32: CONST FCC_A1 : AM% PU% : VA : !

AmPu-93Oga.tdb: FCC_A1, type code %A, sha256 8271a877d7d9acea…

25: PHASE FCC_A1 %A 2 1 1 !
26: CONST FCC_A1 : AM% PU% : VA : !

Example references (3 of 3; assessments first):

doi:10.1016/0925-8388(93)90636-2 Toru Ogawa, Alloying behaviour among U, Np, Pu and Am predicted with the Brewer valence bond model, Journal of Alloys and Compounds 194, 1-7 (1993).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.05.014 P. Gotcu-Freis, J.-Y. Colle, C. Guéneau, N. Dupin, B. Sundman, R.J.M. Konings, A thermodynamic study of the Pu–Am–O system, Journal of Nuclear Materials 414, 408-421 (2011).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.06.034 P.E.A. Turchi, A.I. Landa, P.A. Söderlind, Thermodynamic assessment of the Am–Pu system with input from ab initio, Journal of Nuclear Materials 418, 165-173 (2011).
assessment that models this phase

HCP_A3 (Am–Pu)

Id: phase:am-pu:hcp-a3; status assigned
Structure: Mg · A3 · hP2 · P6_3/mmc (194); type st:a3-mg-hp2; tier A: standard phase name; confidence high
Stability: not stable in 2 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:am-pu:hcp-a3
tdb: tdb:AmPu-10Kur.tdb:HCP_A3, tdb:AmPu-11Tur.tdb:HCP_A3

TDB models of HCP_A3 (2): PHASE and CONSTITUENT statements as written

AmPu-10Kur.tdb: HCP_A3, type code %A, sha256 623e65dd75a93398…

38: PHASE HCP_A3 %A 2 1 0.5 !
39: CONST HCP_A3 : AM PU : VA : !

AmPu-11Tur.tdb: HCP_A3, type code %A, sha256 4acb7bac9c3e8fce…

41: PHASE HCP_A3 %A 2 1 0.5 !
42: CONST HCP_A3 : AM PU : VA : !

Example references (1 of 1; assessments first):

doi:10.1016/j.jnucmat.2011.06.034 P.E.A. Turchi, A.I. Landa, P.A. Söderlind, Thermodynamic assessment of the Am–Pu system with input from ab initio, Journal of Nuclear Materials 418, 165-173 (2011).
assessment that models this phase

LIQUID (Am–Pu)

Id: phase:am-pu:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 4 of 4 calculated diagram(s): 898–4000 K, x(Pu) 0–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:am-pu:liquid
tdb: tdb:AmPu-10Kur.tdb:LIQUID, tdb:AmPu-11Got.tdb:LIQUID, tdb:AmPu-11Tur.tdb:LIQUID, tdb:AmPu-93Oga.tdb:LIQUID

TDB models of LIQUID (4): PHASE and CONSTITUENT statements as written

AmPu-10Kur.tdb: LIQUID, type code %, sha256 623e65dd75a93398…

23: PHASE LIQUID:L % 1 1 !
24: CONST LIQUID:L : AM PU : !

AmPu-11Got.tdb: LIQUID, type code %, sha256 7d92a09b3d9c4097…

23: PHASE LIQUID:L % 1 1 !
24: CONST LIQUID:L : AM PU : !

AmPu-11Tur.tdb: LIQUID, type code %, sha256 4acb7bac9c3e8fce…

26: PHASE LIQUID:L % 1 1 !
27: CONST LIQUID:L : AM PU : !

AmPu-93Oga.tdb: LIQUID, type code %, sha256 8271a877d7d9acea…

20: PHASE LIQUID:L % 1 1 !
21: CONST LIQUID:L : AM PU : !

Example references (3 of 3; assessments first):

doi:10.1016/0925-8388(93)90636-2 Toru Ogawa, Alloying behaviour among U, Np, Pu and Am predicted with the Brewer valence bond model, Journal of Alloys and Compounds 194, 1-7 (1993).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.05.014 P. Gotcu-Freis, J.-Y. Colle, C. Guéneau, N. Dupin, B. Sundman, R.J.M. Konings, A thermodynamic study of the Pu–Am–O system, Journal of Nuclear Materials 414, 408-421 (2011).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.06.034 P.E.A. Turchi, A.I. Landa, P.A. Söderlind, Thermodynamic assessment of the Am–Pu system with input from ab initio, Journal of Nuclear Materials 418, 165-173 (2011).
assessment that models this phase

ALPHA_PU (Am–Pu)

Id: phase:am-pu:pu-alpha; status needs_review
No structure assigned. Why: no_structure_token; off_stoichiometric_model
Candidate (sgte_mmc2): alpha-Pu · mP16 · P2_1/m (11) — Hallstedt 2025 mmc2 row for ALPHA_PU: Pu (alpha)
Candidate (tdb_comment): alpha-Pu · mP16 · P2_1/m — AmPu-10Kur.tdb: 'Prototype alpha-Pu (mP16, P2_1/m)'
Candidate (tdb_comment): alpha-Pu · mP16 · P2_1/m — AmPu-11Got.tdb: 'Prototype alpha-Pu (mP16, P2_1/m)'
Candidate (tdb_comment): alpha-Pu · mP16 · P2_1/m — AmPu-11Tur.tdb: 'Prototype alpha-Pu (mP16, P2_1/m)'
Candidate (tdb_comment): alpha-Pu · mP16 · P2_1/m — AmPu-93Oga.tdb: 'Prototype alpha-Pu (mP16, P2_1/m)'
Stability: stable in 4 of 4 calculated diagram(s): 299.57–397.62 K, x(Pu) 0.9986–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:am-pu:pu-alpha
tdb: tdb:AmPu-10Kur.tdb:ALPHA_PU, tdb:AmPu-11Got.tdb:ALPHA_PU, tdb:AmPu-11Tur.tdb:ALPHA_PU, tdb:AmPu-93Oga.tdb:ALPHA_PU

TDB models of ALPHA_PU (4): PHASE and CONSTITUENT statements as written

AmPu-10Kur.tdb: ALPHA_PU, type code %, sha256 623e65dd75a93398…

53: PHASE ALPHA_PU % 1 1 !
54: CONST ALPHA_PU : AM PU% : !

AmPu-11Got.tdb: ALPHA_PU, type code %, sha256 7d92a09b3d9c4097…

48: PHASE ALPHA_PU % 1 1 !
49: CONST ALPHA_PU : PU : !

AmPu-11Tur.tdb: ALPHA_PU, type code %, sha256 4acb7bac9c3e8fce…

56: PHASE ALPHA_PU % 1 1 !
57: CONST ALPHA_PU : AM PU% : !

AmPu-93Oga.tdb: ALPHA_PU, type code %, sha256 8271a877d7d9acea…

45: PHASE ALPHA_PU % 1 1 !
46: CONST ALPHA_PU : PU : !

Example references (3 of 3; assessments first):

doi:10.1016/0925-8388(93)90636-2 Toru Ogawa, Alloying behaviour among U, Np, Pu and Am predicted with the Brewer valence bond model, Journal of Alloys and Compounds 194, 1-7 (1993).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.05.014 P. Gotcu-Freis, J.-Y. Colle, C. Guéneau, N. Dupin, B. Sundman, R.J.M. Konings, A thermodynamic study of the Pu–Am–O system, Journal of Nuclear Materials 414, 408-421 (2011).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.06.034 P.E.A. Turchi, A.I. Landa, P.A. Söderlind, Thermodynamic assessment of the Am–Pu system with input from ab initio, Journal of Nuclear Materials 418, 165-173 (2011).
assessment that models this phase

BETA_PU (Am–Pu)

Id: phase:am-pu:pu-beta; status needs_review
No structure assigned. Why: no_structure_token; off_stoichiometric_model
Candidate (sgte_mmc2): beta-Pu · mC34 · C2/m (12) — Hallstedt 2025 mmc2 row for BETA_PU: Pu (beta)
Candidate (tdb_comment): beta-Pu · mC34 · C2/m — AmPu-10Kur.tdb: 'Prototype beta-Pu (mC34, C2/m)'
Candidate (tdb_comment): beta-Pu · mC34 · C2/m — AmPu-11Got.tdb: 'Prototype beta-Pu (mC34, C2/m)'
Candidate (tdb_comment): beta-Pu · mC34 · C2/m — AmPu-11Tur.tdb: 'Prototype beta-Pu (mC34, C2/m)'
Candidate (tdb_comment): beta-Pu · mC34 · C2/m — AmPu-93Oga.tdb: 'Prototype beta-Pu (mC34, C2/m)'
Stability: stable in 4 of 4 calculated diagram(s): 397.61–488.11 K, x(Pu) 0.99845–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:am-pu:pu-beta
tdb: tdb:AmPu-10Kur.tdb:BETA_PU, tdb:AmPu-11Got.tdb:BETA_PU, tdb:AmPu-11Tur.tdb:BETA_PU, tdb:AmPu-93Oga.tdb:BETA_PU

TDB models of BETA_PU (4): PHASE and CONSTITUENT statements as written

AmPu-10Kur.tdb: BETA_PU, type code %, sha256 623e65dd75a93398…

58: PHASE BETA_PU % 1 1 !
59: CONST BETA_PU : AM PU% : !

AmPu-11Got.tdb: BETA_PU, type code %, sha256 7d92a09b3d9c4097…

53: PHASE BETA_PU % 1 1 !
54: CONST BETA_PU : PU : !

AmPu-11Tur.tdb: BETA_PU, type code %, sha256 4acb7bac9c3e8fce…

61: PHASE BETA_PU % 1 1 !
62: CONST BETA_PU : AM PU% : !

AmPu-93Oga.tdb: BETA_PU, type code %, sha256 8271a877d7d9acea…

50: PHASE BETA_PU % 1 1 !
51: CONST BETA_PU : PU : !

Example references (3 of 3; assessments first):

doi:10.1016/0925-8388(93)90636-2 Toru Ogawa, Alloying behaviour among U, Np, Pu and Am predicted with the Brewer valence bond model, Journal of Alloys and Compounds 194, 1-7 (1993).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.05.014 P. Gotcu-Freis, J.-Y. Colle, C. Guéneau, N. Dupin, B. Sundman, R.J.M. Konings, A thermodynamic study of the Pu–Am–O system, Journal of Nuclear Materials 414, 408-421 (2011).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.06.034 P.E.A. Turchi, A.I. Landa, P.A. Söderlind, Thermodynamic assessment of the Am–Pu system with input from ab initio, Journal of Nuclear Materials 418, 165-173 (2011).
assessment that models this phase

GAMMA_PU (Am–Pu)

Id: phase:am-pu:pu-gamma; status needs_review
No structure assigned. Why: no_structure_token; off_stoichiometric_model
Candidate (sgte_mmc2): gamma-Pu · oF8 · Fddd (70) — Hallstedt 2025 mmc2 row for GAMMA_PU: Hg4In, Pu (gamma)
Candidate (tdb_comment): gamma-Pu · oF8 · Fddd — AmPu-10Kur.tdb: 'Prototype gamma-Pu (oF8, Fddd)'
Candidate (tdb_comment): gamma-Pu · oF8 · Fddd — AmPu-11Got.tdb: 'Prototype gamma-Pu (oF8, Fddd)'
Candidate (tdb_comment): gamma-Pu · oF8 · Fddd — AmPu-11Tur.tdb: 'Prototype gamma-Pu (oF8, Fddd)'
Candidate (tdb_comment): gamma-Pu · oF8 · Fddd — AmPu-93Oga.tdb: 'Prototype gamma-Pu (oF8, Fddd)'
Stability: stable in 4 of 4 calculated diagram(s): 487.9–732.9 K, x(Pu) 0.9987–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:am-pu:pu-gamma
tdb: tdb:AmPu-10Kur.tdb:GAMMA_PU, tdb:AmPu-11Got.tdb:GAMMA_PU, tdb:AmPu-11Tur.tdb:GAMMA_PU, tdb:AmPu-93Oga.tdb:GAMMA_PU

TDB models of GAMMA_PU (4): PHASE and CONSTITUENT statements as written

AmPu-10Kur.tdb: GAMMA_PU, type code %, sha256 623e65dd75a93398…

63: PHASE GAMMA_PU % 1 1 !
64: CONST GAMMA_PU : AM PU% : !

AmPu-11Got.tdb: GAMMA_PU, type code %, sha256 7d92a09b3d9c4097…

58: PHASE GAMMA_PU % 1 1 !
59: CONST GAMMA_PU : PU : !

AmPu-11Tur.tdb: GAMMA_PU, type code %, sha256 4acb7bac9c3e8fce…

66: PHASE GAMMA_PU % 1 1 !
67: CONST GAMMA_PU : AM PU% : !

AmPu-93Oga.tdb: GAMMA_PU, type code %, sha256 8271a877d7d9acea…

55: PHASE GAMMA_PU % 1 1 !
56: CONST GAMMA_PU : PU : !

Example references (3 of 3; assessments first):

doi:10.1016/0925-8388(93)90636-2 Toru Ogawa, Alloying behaviour among U, Np, Pu and Am predicted with the Brewer valence bond model, Journal of Alloys and Compounds 194, 1-7 (1993).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.05.014 P. Gotcu-Freis, J.-Y. Colle, C. Guéneau, N. Dupin, B. Sundman, R.J.M. Konings, A thermodynamic study of the Pu–Am–O system, Journal of Nuclear Materials 414, 408-421 (2011).
assessment that models this phase
doi:10.1016/j.jnucmat.2011.06.034 P.E.A. Turchi, A.I. Landa, P.A. Söderlind, Thermodynamic assessment of the Am–Pu system with input from ab initio, Journal of Nuclear Materials 418, 165-173 (2011).
assessment that models this phase

Please cite

R. Arróyave, J. Saal, D. Shin, ORCHID-Registry: phase registry of binary systems (version 2026.10; Version 1, machine-extracted), Zenodo (2026). doi:10.5281/zenodo.23735970
R. Arróyave, J. Saal, D. Shin, ORCHID data: umbrella record of the ORCHID datasets (version 2026.10; Version 1, machine-extracted), Zenodo (2026). doi:10.5281/zenodo.23736065

Also cite B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, https://doi.org/10.1016/j.calphad.2025.102833 (CC BY 4.0), and the original assessment named in each file; A. Jain et al., The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013) 011002, https://doi.org/10.1063/1.4812323 (CC BY 4.0); J. E. Saal et al., JOM 65 (2013) 1501, https://doi.org/10.1007/s11837-013-0755-4 and S. Kirklin et al., npj Comput. Mater. 1 (2015) 15010, https://doi.org/10.1038/npjcompumats.2015.10 (CC BY 4.0); the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work). Version 1, machine-extracted: values were read by language-model readers constrained to quote their source and checked automatically, and the release was then audited on the printed pages by adversarial audits, an independent second review of fit-facing records and a preliminary human review of a frozen sample. Flags such as accepted and ESPEI-ready record screening results, not certification; known issues are listed in the release notes.

@misc{orchid_phase_registry_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Registry: phase registry of binary systems}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735970},
  url       = {https://doi.org/10.5281/zenodo.23735970},
  note      = {Version 1, machine-extracted}
}

@misc{orchid_data_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID data: umbrella record of the ORCHID datasets}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23736065},
  url       = {https://doi.org/10.5281/zenodo.23736065},
  note      = {Version 1, machine-extracted}
}